Multiple hybrid polyculture method of omnivorous and carnivorous fishes in intensive prawn culture pond

A multi-component, carnivorous technology, applied in fish farming, applications, climate change adaptation, etc., can solve the problems of difficult removal of organic pollutants and low space utilization in the central area, achieving less medication, significant environmental and ecological benefits, The effect of reducing pollution

Inactive Publication Date: 2012-11-14
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a kind of multi-component compound polyculture method for omnivorous and carnivorous fishes in intensive prawn cultivation ponds. Solve th

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Application of Intensive Culture Ponds in Shrimp Winter Sheds

[0022] The multivariate compound polyculture mode of the prawn intensive culture pond provided by the invention has been tested in the prawn winter shed multivariate polyculture pond in the prawn farm. Observe 4 winter shed culture ponds, including 2 multivariate polyculture ponds and 2 monoculture control ponds, which are respectively contained in two plastic film greenhouses. The breeding pond is a square mud pond with an area of ​​6 mu; each pond is equipped with two 1.5KW impeller aerators.

[0023] Before the pond enters the water, use quicklime to clear the pond, and dry the pond until the bottom of the pond cracks.

[0024] After the pond is filled with water, the pond water is pretreated, including disinfecting the pond water and carrying out a fertilizer and water step after the toxicity of the pond water disappears. Disinfection uses pond trichloroisocyanuric acid (amount of 1-2ppm) and so on. ...

Embodiment 2

[0030] Intensive soil pond application (1)

[0031] The multivariate compound polyculture mode of the prawn intensive culture pond provided in this example has been applied in a pilot test of the intensive culture earth pond in the prawn farm. There are 6 observation ponds, including 3 polyculture ponds and 3 monoculture control ponds. The breeding pond is a square mud pond with an area of ​​6 mu. The water inlet and outlet are located in the center of the opposite side of the pond; each pond is equipped with two 1.5KW impeller aerators.

[0032] In the center of each multivariate polyculture pond, a net is used (the mesh width is 2 cm, and the mesh size of the seine is such that the prawns can enter and exit the mesh and the miscellaneous fish species and carnivorous fish species cannot enter and exit the mesh is better) and The stakes are set up as a rectangular fence with an area of ​​800 square meters (32 meters long and 25 meters wide). The lower edge of the fence is fi...

Embodiment 3

[0037] Intensive soil pond application (2)

[0038] The multivariate compound polyculture mode of the prawn intensive culture pond provided in this example has been applied in a pilot test of the intensive culture earth pond in the prawn farm. There are 3 experimental ponds, and the breeding ponds are square silt ponds with an area of ​​6 mu. The water inlet and outlet are located in the center of the opposite side of the pond; each pond is equipped with two 1.5KW impeller aerators. In the center of each multivariate polyculture pond, a net is used (the mesh width is 2 cm, and the mesh size of the seine is such that the prawns can enter and exit the mesh and the miscellaneous fish species and carnivorous fish species cannot enter and exit the mesh is better) and The stakes are set up as a rectangular fence with an area of ​​800 square meters (32 meters long and 25 meters wide).

[0039] Experiments began in mid-June. Use tea seed meal to clear the pond 10 days before the see...

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Abstract

The invention discloses a multiple hybrid polyculture method of omnivorous and carnivorous fishes in an intensive prawn culture pond. The method includes pretreating pond water in a pond with a surrounding net at the center, putting prawn seeds in the pond for culture, putting omnivorous fish seeds in the surrounding net for culture, putting carnivorous fish seeds outside the surrounding net for culture, using an aerator to aerate the pond during culture, throwing feed in the area outside the surrounding net at times, and adding microbiological preparation to control water quality in mid-to-late period of culture. By the method, utilization rate of prawn feed can be increased evidently, excess accumulation of organic pollutants in the intensive prawn culture pond is relieved effectively, the problem of low utilization rate of center space of the intensive prawn culture pond can be solved, infectious prawn diseases can be controlled to a certain degree, various advantages of fish and shrimp polyculture are given to play, and success rate of prawn culture is increased greatly.

Description

technical field [0001] The invention specifically relates to a method for multi-component compound polyculture of omnivorous and carnivorous fish in ponds for intensive cultivation of prawns. Background technique [0002] Shrimp pond culture is an important pillar of my country's mariculture industry, and prawn is the main breeding object in coastal tidal ponds in my country. At present, prawn ponds are mainly monocultured prawns, and the aquaculture area and production mainly come from intensive earthen ponds (high stocking density, equipped with aeration equipment, and artificial feed throughout the process) and high-level intensive ponds. In the shrimp intensive pond, the pool water is driven by the aerator to rotate and flow in a certain direction, and the residual shrimp bait, large particles of organic matter, shrimp carcasses and even weak shrimp in the pond are gradually concentrated to the central area of ​​the pond along the water flow. Therefore, if the organic m...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 朱长波陈利雄郭永坚粟丽余招龙艾伟岭
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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